Abstract:
A semiconductor device having a semiconductor chip stack on a rewiring plate is disclosed. In one embodiment, the device includes an external contact area having a plurality of external contact area regions which are physically separate from one another is arranged on the underside. The individual external contact area regions are assigned to the individual semiconductor chips in the semiconductor chip stack. The external contact regions of an individual external contact area have a common external contact which electrically connects the external contact area regions.
Abstract:
A circuitized substrate designed to substantially eliminate impedance disruptions during passage of signals through signal lines of the substrate's circuitry. The substrate includes a first conductive layer with a plurality of conductors on which an electrical component may be positioned and electrically coupled. The pads are coupled to signal lines (e.g., using thru-holes) further within the substrate and these signal lines are further coupled to a second plurality of conductive pads located even further within the substrate. The signal lines are positioned so as to lie between the substrate's first conductive layer and a voltage plane within a third conductive layer below the second conductive layer including the signal lines. A second voltage plane may be used adjacent the first voltage plane of the third conductive layer. Thru-holes may also be used to couple the signal lines coupled to the first conductors to a second plurality of conductors which form part of the third conductive layer. A method of making the substrate, and an electrical assembly and information handling system (e.g., computer) utilizing the substrate are also disclosed.
Abstract:
A circuit arrangement includes an arrangement of layers, wherein the arrangement of layers has a first surface and a second surface, at least one first and at least one second plated-through hole, at least one third plated-through hole, at least one first semiconductor component, and at least one second semiconductor component. A first layer from among the plurality of layers has a first conductive region and a second conductive region, which are coupled via a conductive connection. A second layer from among the plurality of layers has at least one first conductive region coupled to the first plated-through hole, and a second conductive region coupled to the second plated-through hole.
Abstract:
A ground layer of a printed circuit board (PCB) includes a digital area, an analog area, and a connecting portion. The digital area is connected to the analog area via the connecting portion. The connecting portion with one end connected to the digital area, and the other end connected to the analog area follows a path resembling a labyrinth. The connecting portion replaces a conventional linear connecting portion and a plurality of chip capacitors. The connecting portion improves noise filtering effect and reduces cost as well.
Abstract:
A microcomputer provided on a rectangular semiconductor board has memory interface circuits. The memory interface circuits are separately disposed in such positions as to extend along the peripheries of the semiconductor board on both sides from one corner as a reference position. In this case, limitations to size reduction imposed on the semiconductor board can be reduced compared with a semiconductor board having memory interface circuits only on one side. Respective partial circuits on each of the separated memory interface circuits have equal data units associated with data and data strobe signals. Thus, the microcomputer has simplified line design on a mother board and on a module board.
Abstract:
For electrical backplanes and the like, a power plane adaptation to improve the propagation of high-speed signals through clearances in an embedded power plane is disclosed. In exemplary embodiments, the power plane is segmented in a high-speed connector region, such that a portion of the metal layer that forms the power plane is retained in the high-speed connector region—but isolated from the power-delivery portion of the power plane. The isolated portion is connected to digital ground, and clearances are formed therein where high-speed signaling throughholes will pass through the region. In some embodiments, various attainable advantages include better manufacturability, better matching and control of high-speed signaling throughhole impedance, and improved noise isolation. Other embodiments are described and claimed.
Abstract:
A method of making circuitized substrate which includes a plurality of contiguous open segments which define facing edge portions within an electrically conductive layer to isolate separate portions of the conductive layer such that the layer can be used for different functions, e.g., as both power and ground elements, within a product (e.g., electrical assembly) which includes the substrate as part thereof. An information handling system, e.g., a mainframe computer, which represents one of the products in which the substrate may be utilized, is also provided.
Abstract:
A printed wiring board on which a pattern can be formed favorably by printing and soldering even where a small part of the 1005 size or less is mounted. The printed wiring board includes a substrate; a pair of soldering lands on the substrate, the soldering lands being spaced from one another with a first side of one land opposing a first side of another land; and a mounted part having a pair of electrodes on opposite ends thereof soldered to the respective lands. A wiring line is connected to each soldering land, and an insulating element overlies the wiring lines. The insulating element has openings formed so as to expose the soldering lands therethrough. Wiring line connection elements are individually connected to only the first sides of the lands. Each insulating element opening has an edge positioned outside of the corresponding land and on the inner side of the corresponding wiring line connection element.
Abstract:
According to one embodiment, a capacitor includes a first anode terminal exposed from an end portion of a first inner electrode coupled to one side of a dielectric in a predetermined direction, a second anode terminal exposed from the other end portion of the first electrode in the predetermined direction, a first cathode terminal exposed from a predetermined portion of a second inner electrode that is connected to the other side of the dielectric and provided independently of the first electrode, to insides of the exposed portions of the first and second anode terminals, in the predetermined direction, and a second cathode terminal exposed from a part of the predetermined portion of the second electrode which is close to the second anode terminal, to the insides of the exposed portions of the first and second anode terminals, in the predetermined direction, at a predetermined interval from the first cathode terminal.
Abstract:
A capacitive structure and technique for allowing near-instantaneous charge transport and reliable, wide-band RF ground paths in integrated circuit devices such as integrated circuit dies, integrated circuit packages, printed circuit boards, and electronic circuit substrates is presented. Methods for introducing resistive loss, dielectric loss, magnetic loss, and/or radiation loss in a signal absorption ring implemented around a non-absorptive area of one or more conductive layers of an integrated circuit structure to dampen laterally flowing Electro-Magnetic (EM) waves between electrically adjacent conductive layers of the device are also presented.